Mold (mildew), mushrooms, and yeast are all types of fungi. Fungi are found both indoors and outdoors. Hundreds of different kinds of mold are commonly found in the United States and New York City.

The best way to prevent mold growth in your apartment is to remove water and moisture sources. Fixing leaks, drying damp areas, and removing humidity from the air (e.g., using a dehumidifier in basements; cracking a window while taking a shower in bathrooms with no exhaust ventilation) will help stop mold growth and keep it from coming back.

To address small areas of mold:

  • Use soap or a detergent solution and water to clean small areas of mold (less than 10 square feet) on walls or other hard surfaces as soon as you see it.
  • Wear waterproof gloves.
  • Dry the cleaned area completely.
  • If the mold returns quickly or spreads, there may be an underlying problem such as a water leak. To stop mold, water problems must be fixed.

To learn more about mold, listen to the HPD podcast on mold or visit the NYC Health's page on mold.